{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "AIM : Experimental and clinical studies have revealed that hippocampal DBS can control epileptic activity , but the mechanism of action is obscure and optimal stimulation parameters are not clearly defined ."}
{"Disease": ["epileptic"], "Chemical": []}